Willis, Jerry, 1942- Foundations of qualitative research : interpretive and critical approaches / Jerry W. Willis. - Thousand Oaks, CA. : SAGE Publications, 2007. - xxiv, 366 p. : ill. ; 24 cm. Includes bibliographical references and index. ISBN: 9781412927406 (hbk.) RM486.45 9781412927413 (pbk.) Subjects--Topical Terms: Social sciences--Research.